Solution for Evil Sudoku #2498532417642
2
3
9
6
1
8
4
5
7
8
4
5
9
3
7
1
2
6
7
6
1
2
5
4
8
9
3
1
7
6
8
9
2
3
4
5
5
9
3
7
1
4
6
8
2
4
8
2
6
3
5
1
7
9
7
2
3
5
8
1
9
6
4
4
5
8
2
6
9
3
7
1
9
1
6
3
4
7
5
2
8
This Sudoku Puzzle has 60 steps and it is solved using Hidden Single, Locked Candidates Type 1 (Pointing), Naked Pair, undefined, Swordfish, Naked Single, Empty Rectangle, Full House techniques.
Naked Single
Explanation
Hidden Single
Explanation
Locked Candidates
Explanation
Full House
Explanation
Solution Steps:
- Row 3 / Column 3 → 7 (Hidden Single)
- Row 6 / Column 6 → 2 (Hidden Single)
- Row 5 / Column 3 → 2 (Hidden Single)
- Row 4 / Column 4 → 5 (Hidden Single)
- Row 1 / Column 6 → 5 (Hidden Single)
- Row 5 / Column 8 → 3 (Hidden Single)
- Row 9 / Column 4 → 3 (Hidden Single)
- Row 7 / Column 3 → 3 (Hidden Single)
- Row 2 / Column 7 → 2 (Hidden Single)
- Row 8 / Column 2 → 8 (Hidden Single)
- Row 3 / Column 6 → 6 (Hidden Single)
- Row 9 / Column 5 → 7 (Hidden Single)
- Row 5 / Column 4 → 7 (Hidden Single)
- Row 2 / Column 8 → 5 (Hidden Single)
- Row 9 / Column 7 → 5 (Hidden Single)
- Row 7 / Column 6 → 8 (Hidden Single)
- Row 8 / Column 1 → 5 (Hidden Single)
- Locked Candidates Type 1 (Pointing): 4 in b4 => r2c2<>4
- Locked Candidates Type 1 (Pointing): 8 in b5 => r1c5<>8
- Locked Candidates Type 1 (Pointing): 1 in b6 => r6c2<>1
- Naked Pair: 6,9 in r57c7 => r6c7<>9
- X-Wing: 6 c38 r14 => r1c9,r4c12<>6
- Swordfish: 4 r237 c149 => r1c49,r8c9<>4
- Row 1 / Column 9 → 1 (Naked Single)
- Row 3 / Column 7 → 8 (Naked Single)
- Row 6 / Column 7 → 1 (Naked Single)
- Row 1 / Column 4 → 8 (Hidden Single)
- Naked Pair: 7,9 in r68c9 => r7c9<>9
- Empty Rectangle: 9 in b8 (r57c7) => r5c6<>9
- Row 5 / Column 6 → 4 (Naked Single)
- Row 6 / Column 2 → 4 (Hidden Single)
- Row 1 / Column 5 → 4 (Hidden Single)
- Row 1 / Column 8 → 6 (Naked Single)
- Row 1 / Column 3 → 9 (Full House)
- Row 2 / Column 9 → 4 (Full House)
- Row 3 / Column 4 → 1 (Naked Single)
- Row 2 / Column 4 → 9 (Full House)
- Row 3 / Column 1 → 4 (Full House)
- Row 7 / Column 4 → 4 (Full House)
- Row 8 / Column 3 → 1 (Naked Single)
- Row 4 / Column 3 → 6 (Full House)
- Row 7 / Column 9 → 6 (Naked Single)
- Row 7 / Column 7 → 9 (Full House)
- Row 5 / Column 7 → 6 (Full House)
- Row 5 / Column 2 → 9 (Full House)
- Row 8 / Column 6 → 9 (Naked Single)
- Row 9 / Column 6 → 1 (Full House)
- Row 8 / Column 9 → 7 (Naked Single)
- Row 6 / Column 9 → 9 (Full House)
- Row 8 / Column 8 → 4 (Full House)
- Row 4 / Column 1 → 1 (Naked Single)
- Row 4 / Column 2 → 7 (Full House)
- Row 9 / Column 2 → 6 (Naked Single)
- Row 2 / Column 2 → 1 (Full House)
- Row 2 / Column 1 → 6 (Full House)
- Row 9 / Column 1 → 9 (Full House)
- Row 6 / Column 5 → 8 (Naked Single)
- Row 4 / Column 5 → 9 (Full House)
- Row 4 / Column 8 → 8 (Full House)
- Row 6 / Column 8 → 7 (Full House)
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